[ecosystem] Enable Wasm light clients on IBC (08-wasm)

[Unique-Divine]

Motivation

Light clients verify block headers and enable trust-minimized communication between chains.

After IBC proved its capability to be extended into other platforms, the wasm light client module was introduced for chains to easily, deploy and modify light clients. IBC Light clients based on 08-wasm are implemented using WebAssembly.

Note

"Adding support for 08-wasm is essential to get Euclid Protocol live on 40-50 testnets by the end of October.".

Background on the 08-wasm IBC light client.

The Ask

• The chain needs to support wasm clients. In our case, we're meant to follow the guidelines for chains that already use Wasm. Follow the steps here: IBC Docs. Wasm Light client
• Open a union connection to some instance of Nibiru. Preferably testnet. Union Docs. Adding SDKs: CometBFT This uses the nibid tx ibc-wasm command to create a proposal.
• Add the authority chages for the IBC Wasm light client
• [Create new ticket] Get the upgrade completed on mainnet

More Info

1. IBC Blog - Wasm Client
2. Union ZK-Powered Consensus Verification - Discusses Union x IBC integration and Union relayers
3. GitHub. Union Labs - repo related to this feature
4. IBC, Union, and Scroll (EVM)